diff --git a/helpers/make-python-apt b/helpers/make-python-apt
index 860969f..dce5a4f 100644
--- a/helpers/make-python-apt
+++ b/helpers/make-python-apt
@@ -110,6 +110,7 @@ EOF
 export DEB_BUILD_OPTIONS=nocheck
 
 changelog "Compiled for Trisquel"
+head -n1 debian/changelog | grep -q ubuntu && echo "error: update FULLVERSION value" && exit
 
 compile